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1302213031213 = 4077473193679
BaseRepresentation
bin10010111100110001111…
…100011111010100101101
311121111020110120002100011
4102330301330133110231
5132313413013444323
62434121200333221
7163040024063413
oct22746174372455
94544213502304
101302213031213
114622a1342306
12190464614211
1395a4b73c273
14470554592b3
1523d1836820d
hex12f31f1f52d

1302213031213 has 4 divisors (see below), whose sum is σ = 1302216632640. Its totient is φ = 1302209429788.

The previous prime is 1302213031211. The next prime is 1302213031237. The reversal of 1302213031213 is 3121303122031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1302213031213 - 21 = 1302213031211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302213031211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1189093 + ... + 2004586.

It is an arithmetic number, because the mean of its divisors is an integer number (325554158160).

Almost surely, 21302213031213 is an apocalyptic number.

It is an amenable number.

1302213031213 is a deficient number, since it is larger than the sum of its proper divisors (3601427).

1302213031213 is an equidigital number, since it uses as much as digits as its factorization.

1302213031213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601426.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1302213031213 its reverse (3121303122031), we get a palindrome (4423516153244).

The spelling of 1302213031213 in words is "one trillion, three hundred two billion, two hundred thirteen million, thirty-one thousand, two hundred thirteen".

Divisors: 1 407747 3193679 1302213031213